33066667009 has 4 divisors (see below), whose sum is σ = 33113838420. Its totient is φ = 33019495600.

The previous prime is 33066666977. The next prime is 33066667031. The reversal of 33066667009 is 90076666033.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90076666033 = 727 ⋅123901879.

It can be written as a sum of positive squares in 2 ways, for example, as 25970289409 + 7096377600 = 161153^2 + 84240^2 .

It is a cyclic number.

It is not a de Polignac number, because 33066667009 - 2⁵ = 33066666977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 33066667009.

It is not an unprimeable number, because it can be changed into a prime (33066661009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23584654 + ... + 23586055.

It is an arithmetic number, because the mean of its divisors is an integer number (8278459605).

Almost surely, 2^33066667009 is an apocalyptic number.

It is an amenable number.

33066667009 is a deficient number, since it is larger than the sum of its proper divisors (47171411).

33066667009 is an equidigital number, since it uses as much as digits as its factorization.

33066667009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47171410.

The product of its (nonzero) digits is 734832, while the sum is 46.

The spelling of 33066667009 in words is "thirty-three billion, sixty-six million, six hundred sixty-seven thousand, nine".